import auth from '@/plugins/auth'
import router, {
  constantRoutes,
  dynamicRoutes
} from '@/router'
import {
  getRouters
} from '@/api/menu'
import Layout from '@/layout/index'
import ParentView from '@/components/ParentView'
import InnerLink from '@/layout/components/InnerLink'

const permission = {
  state: {
    routes: [],
    addRoutes: [],
    defaultRoutes: [],
    topbarRouters: [],
    sidebarRouters: []
  },
  mutations: {
    SET_ROUTES: (state, routes) => {
      state.addRoutes = routes
      state.routes = constantRoutes.concat(routes)
    },
    SET_DEFAULT_ROUTES: (state, routes) => {
      state.defaultRoutes = constantRoutes.concat(routes)
    },
    SET_TOPBAR_ROUTES: (state, routes) => {
      state.topbarRouters = routes
    },
    SET_SIDEBAR_ROUTERS: (state, routes) => {
      state.sidebarRouters = routes
    },
  },
  actions: {
    // 生成路由
    GenerateRoutes({
      commit
    }) {
      return new Promise(resolve => {
        // 向后端请求路由数据
        // getRouters().then(res => {
        // const sdata = JSON.parse(JSON.stringify(res.data))
        // const rdata = JSON.parse(JSON.stringify(res.data))
        const temp = [{

            "name": "System",
            "path": "/system",
            "hidden": false,
            "redirect": "noRedirect",
            "component": "Layout",
            "alwaysShow": true,
            "meta": {
              "title": "系统管理",
              "icon": "system",
              "noCache": false,
              "link": null
            },
            "children": [{
                "name": "User",
                "path": "user",
                "hidden": false,
                "component": "system/user/index",
                "meta": {
                  "title": "用户管理",
                  "icon": "user",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Role",
                "path": "role",
                "hidden": false,
                "component": "system/role/index",
                "meta": {
                  "title": "角色管理",
                  "icon": "peoples",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Menu",
                "path": "menu",
                "hidden": false,
                "component": "system/menu/index",
                "meta": {
                  "title": "菜单管理",
                  "icon": "tree-table",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Dept",
                "path": "dept",
                "hidden": false,
                "component": "system/dept/index",
                "meta": {
                  "title": "部门管理",
                  "icon": "tree",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Post",
                "path": "post",
                "hidden": false,
                "component": "system/post/index",
                "meta": {
                  "title": "岗位管理",
                  "icon": "post",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Dict",
                "path": "dict",
                "hidden": false,
                "component": "system/dict/index",
                "meta": {
                  "title": "字典管理",
                  "icon": "dict",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Config",
                "path": "config",
                "hidden": false,
                "component": "system/config/index",
                "meta": {
                  "title": "参数设置",
                  "icon": "edit",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Notice",
                "path": "notice",
                "hidden": false,
                "component": "system/notice/index",
                "meta": {
                  "title": "通知公告",
                  "icon": "message",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Log",
                "path": "log",
                "hidden": false,
                "redirect": "noRedirect",
                "component": "ParentView",
                "alwaysShow": true,
                "meta": {
                  "title": "日志管理",
                  "icon": "log",
                  "noCache": false,
                  "link": null
                },
                "children": [{
                    "name": "Operlog",
                    "path": "operlog",
                    "hidden": false,
                    "component": "monitor/operlog/index",
                    "meta": {
                      "title": "操作日志",
                      "icon": "form",
                      "noCache": false,
                      "link": null
                    }
                  },
                  {
                    "name": "Logininfor",
                    "path": "logininfor",
                    "hidden": false,
                    "component": "monitor/logininfor/index",
                    "meta": {
                      "title": "登录日志",
                      "icon": "logininfor",
                      "noCache": false,
                      "link": null
                    }
                  }
                ]
              }
            ]
          },
          {
            "name": "Monitor",
            "path": "/monitor",
            "hidden": false,
            "redirect": "noRedirect",
            "component": "Layout",
            "alwaysShow": true,
            "meta": {
              "title": "系统监控",
              "icon": "monitor",
              "noCache": false,
              "link": null
            },
            "children": [{
                "name": "Online",
                "path": "online",
                "hidden": false,
                "component": "monitor/online/index",
                "meta": {
                  "title": "在线用户",
                  "icon": "online",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Job",
                "path": "job",
                "hidden": false,
                "component": "monitor/job/index",
                "meta": {
                  "title": "定时任务",
                  "icon": "job",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Druid",
                "path": "druid",
                "hidden": false,
                "component": "monitor/druid/index",
                "meta": {
                  "title": "数据监控",
                  "icon": "druid",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Server",
                "path": "server",
                "hidden": false,
                "component": "monitor/server/index",
                "meta": {
                  "title": "服务监控",
                  "icon": "server",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Cache",
                "path": "cache",
                "hidden": false,
                "component": "monitor/cache/index",
                "meta": {
                  "title": "缓存监控",
                  "icon": "redis",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "CacheList",
                "path": "cacheList",
                "hidden": false,
                "component": "monitor/cache/list",
                "meta": {
                  "title": "缓存列表",
                  "icon": "redis-list",
                  "noCache": false,
                  "link": null
                }
              }
            ]
          },
          {
            "name": "Tool",
            "path": "/tool",
            "hidden": false,
            "redirect": "noRedirect",
            "component": "Layout",
            "alwaysShow": true,
            "meta": {
              "title": "系统工具",
              "icon": "tool",
              "noCache": false,
              "link": null
            },
            "children": [{
                "name": "Build",
                "path": "build",
                "hidden": false,
                "component": "tool/build/index",
                "meta": {
                  "title": "表单构建",
                  "icon": "build",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Gen",
                "path": "gen",
                "hidden": false,
                "component": "tool/gen/index",
                "meta": {
                  "title": "代码生成",
                  "icon": "code",
                  "noCache": false,
                  "link": null
                }
              },
              {
                "name": "Swagger",
                "path": "swagger",
                "hidden": false,
                "component": "tool/swagger/index",
                "meta": {
                  "title": "系统接口",
                  "icon": "swagger",
                  "noCache": false,
                  "link": null
                }
              }
            ]
          }
        ]

        const sdata = JSON.parse(JSON.stringify(temp))
        const rdata = JSON.parse(JSON.stringify(temp))
        const sidebarRoutes = filterAsyncRouter(sdata)
        const rewriteRoutes = filterAsyncRouter(rdata, false, true)
        // const asyncRoutes = filterDynamicRoutes(dynamicRoutes)
        // rewriteRoutes.push({
        //   path: '*',
        //   redirect: '/404',
        //   hidden: true
        // })
        // router.addRoutes(asyncRoutes)
        commit('SET_ROUTES', rewriteRoutes)
        // commit('SET_SIDEBAR_ROUTERS', constantRoutes.concat(sidebarRoutes))
        commit('SET_SIDEBAR_ROUTERS', constantRoutes)
        commit('SET_DEFAULT_ROUTES', sidebarRoutes)
        commit('SET_TOPBAR_ROUTES', sidebarRoutes)
        resolve(rewriteRoutes)
      })
      // })
    }
  }
}

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
  return asyncRouterMap.filter(route => {
    if (type && route.children) {
      route.children = filterChildren(route.children)
    }
    if (route.component) {
      // Layout ParentView 组件特殊处理
      if (route.component === 'Layout') {
        route.component = Layout
      } else if (route.component === 'ParentView') {
        route.component = ParentView
      } else if (route.component === 'InnerLink') {
        route.component = InnerLink
      } else {
        route.component = loadView(route.component)
      }
    }
    if (route.children != null && route.children && route.children.length) {
      route.children = filterAsyncRouter(route.children, route, type)
    } else {
      delete route['children']
      delete route['redirect']
    }
    return true
  })
}

function filterChildren(childrenMap, lastRouter = false) {
  var children = []
  childrenMap.forEach(el => {
    el.path = lastRouter ? lastRouter.path + '/' + el.path : el.path
    if (el.children && el.children.length && el.component === 'ParentView') {
      children = children.concat(filterChildren(el.children, el))
    } else {
      children.push(el)
    }
  })
  return children
}

// 动态路由遍历，验证是否具备权限
export function filterDynamicRoutes(routes) {
  const res = []
  routes.forEach(route => {
    if (route.permissions) {
      if (auth.hasPermiOr(route.permissions)) {
        res.push(route)
      }
    } else if (route.roles) {
      if (auth.hasRoleOr(route.roles)) {
        res.push(route)
      }
    }
  })
  return res
}

export const loadView = (view) => {
  if (process.env.NODE_ENV === 'development') {
    return (resolve) => require([`@/views/${view}`], resolve)
  } else {
    // 使用 import 实现生产环境的路由懒加载
    return () => import(`@/views/${view}`)
  }
}

export default permission
